Help>About will tell you. It will start with 13 (for example 13.2.0.49)

I'm using the last update for CC 2014

No you aren't.

CC 2014.1 (AE version 13.1.x) introduced a blue color to the interface. Yours shows the old, yellow version. But it's not just one update, you are two updates behind! The latest version of CC 2014 is CC 2014.2 (AE version 13.2.x)

Seriously, you are missing a lot of bug fixes and a few new features too!

Although, technically, you're at least three updates behind since CC 2015 is now out! (AE version 13.5.x)